Following the recent announcement from LG for an 84-inch 4K Ultra Definition 3D HDTV, Sony is also up to the 4K game as they have announced a similar product ' Sony BRAVIA KD-84X9005. Sony is also going to release an 84-inch 4K resolution passive 3D HDTV like what LG is going to start offering in September, however Sony should have their product on the market by the end of the year. The 4K (3840Ã?2160 pixels) LCD HDTV from Sony will also be equipped with HDMI 1.4 interface capable of supporting the panel's native resolution in 2D mode, but not stereo 3D mode higher than 1080p. So you'll be getting Full HD 3D support as maximum over the HDMI 1.4 interface that will be upscaled to 4K by the TV set. The fact that the 3D is being achieved with passive 3D technology however will make it possible to use Row Interleaved output to the display to have 3D content at 3840Ã?1080 resolution per eye in stereo 3D mode at 24, 25 or 30Hz, so no the 60Hz that some of you might expect as we are hitting the HDMI 1.4 interface bandwidth limit. So don't be i a hurry to be an early adopter of 4K 3D HDTV if you really want to be able to fully enjoy the higher resolution in 3D as well, though there is still total lack of consumer accessible 2D and 3D content at 4K resolution anyway.